wiiqt/nandExtract/tools.cpp

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#include "tools.h"
#include "includes.h"
#include "aes.h"
//#include "sha1.h"
QString currentDir;
QString cachePath = "./NUS_cache";
QString nandPath = "./dump";
char ascii( char s ) {
if ( s < 0x20 ) return '.';
if ( s > 0x7E ) return '.';
return s;
}
//using stderr just because qtcreator stows it correctly when mixed with qDebug(), qWarning(), etc
//otherwise it may not be shown in the correct spot in the output due to stdout/stderr caches
void hexdump( const void *d, int len ) {
unsigned char *data;
int i, off;
data = (unsigned char*)d;
fprintf( stderr, "\n");
for ( off = 0; off < len; off += 16 ) {
fprintf( stderr, "%08x ", off );
for ( i=0; i<16; i++ )
{
if( ( i + 1 ) % 4 )
{
if ( ( i + off ) >= len ) fprintf( stderr," ");
else fprintf( stderr,"%02x",data[ off + i ]);
}
else
{
if ( ( i + off ) >= len ) fprintf( stderr," ");
else fprintf( stderr,"%02x ",data[ off + i ]);
}
}
fprintf( stderr, " " );
for ( i = 0; i < 16; i++ )
if ( ( i + off) >= len ) fprintf( stderr," ");
else fprintf( stderr,"%c", ascii( data[ off + i ]));
fprintf( stderr,"\n");
}
fflush( stderr );
}
void hexdump( const QByteArray &d, int from, int len )
{
hexdump( d.data() + from, len == -1 ? d.size() : len );
}
void hexdump12( const void *d, int len ) {
unsigned char *data;
int i, off;
data = (unsigned char*)d;
fprintf( stderr, "\n");
for ( off = 0; off < len; off += 12 ) {
fprintf( stderr, "%08x ", off );
for ( i=0; i<12; i++ )
{
if( ( i + 1 ) % 4 )
{
if ( ( i + off ) >= len ) fprintf( stderr," ");
else fprintf( stderr,"%02x",data[ off + i ]);
}
else
{
if ( ( i + off ) >= len ) fprintf( stderr," ");
else fprintf( stderr,"%02x ",data[ off + i ]);
}
}
fprintf( stderr, " " );
for ( i = 0; i < 12; i++ )
if ( ( i + off) >= len ) fprintf( stderr," ");
else fprintf( stderr,"%c", ascii( data[ off + i ]));
fprintf( stderr,"\n");
}
fflush( stderr );
}
void hexdump12( const QByteArray &d, int from, int len )
{
hexdump12( d.data() + from, len == -1 ? d.size() : len );
}
QByteArray PaddedByteArray( const QByteArray &orig, quint32 padTo )
{
QByteArray padding( RU( padTo, orig.size() ) - orig.size(), '\0' );
//qDebug() << "padding with" << hex << RU( padTo, orig.size() ) << "bytes" <<
return orig + padding;
}
QByteArray AesDecrypt( quint16 index, const QByteArray source )
{
static quint8 iv[ 16 ];
quint16 beidx = qFromBigEndian( index );
memset( iv, 0, 16 );
memcpy( iv, &beidx, 2 );
QByteArray ret( source.size(), '\0' );
aes_decrypt( iv, (const quint8*)source.data(), (quint8*)ret.data(), source.size() );
return ret;
}
void AesSetKey( const QByteArray key )
{
aes_set_key( (const quint8*)key.data() );
}
/*
QByteArray GetSha1( QByteArray stuff )
{
SHA1Context sha;
SHA1Reset( &sha );
SHA1Input( &sha, (const unsigned char*)stuff.data(), stuff.size() );
if( !SHA1Result( &sha ) )
{
qWarning() << "GetSha1 -> sha error";
return QByteArray();
}
QByteArray ret( 20, '\0' );
quint8 *p = (quint8 *)ret.data();
for( int i = 0; i < 5 ; i++ )
{
quint32 part = qFromBigEndian( sha.Message_Digest[ i ] );
memcpy( p + ( i * 4 ), &part, 4 );
}
//hexdump( ret );
return ret;
}*/